RM82MIC LINE MIXEREight Channel Audio Mixer
Quick Start Guide
ROLLS CORPORATION
SALT LAKE CITY, UTAH
10/10
SPECIFICATIONS
Input Impedance: Mic: 10K Ω XLR balanced
1/4": 20K Ω unbalanced
Bus Input: 10K Ω unbalanced
Max Input Level: Mic: 0 dBV balanced
Line: +6 dBV
Input Connectors: 8: XLR, 8: 1/4" (Line), 1: RCA (Bus input)
Outputs: XLR bal., RCA unbalanced Prefade out
Max Gain: Mic: 55 dB
Line: 26 dB
Tone Control: 12 dB Treble/Bass cut
Phantom Power: +48 VDC
Output Level: +22 dBV max
Output Impedance: 51 Ω
Phase Shift: <10 degrees, 20Hz to 20 kHz
Max S/N ratio: 106 dB
THD: <.01%
CMRR: >52 dB (Mic)
Size: 19" x 1.75" x 6"
(48.3 x 4.5 x 15 cm)
Weight: 7 lbs. (3 kg)
DIP SWITCH DEFAULT SETTING: ALL OFF
JUMPER DEFAULT SETTING: 1/4” JACKS AS INPUT
MAIN OUTPUT AS LINE
OPERATION
CONFIGURING THE 1/4” INPUT JACKS AS DIRECT OUTPUTS
The eight 1/4” Input jacks come from the factory confi gured as line inputs and
are electrically mixed with the XLR jacks. They may be used together if desired.
To confi gure a channel’s 1/4” jack as a Direct Out, fi rst remove the RM82 lid.
For each channel there are dual three-pin headers with shorting jumper on two
pins. The setting from the factory is on “IN”. By moving the shorting jumpers to
the confi guration shown as “OUT” (one jumper up, the other down), the jack then
becomes a Direct Output.
CONFIGURING THE 1/4” INPUT JACKS AS INSERTS
To confi gure a channel’s 1/4” jack as an Insert, fi rst remove the RM82 lid and
locate the corresponding channel’s dual three-pin header. Move both shorting
jumpers down as shown below as “INSRT”, the jack then becomes an Insert.
DirectOutputInsert InputCONFIGURING THE OUTPUT FOR MIC OR LINE LEVEL
The RM82 ships from the factory with the XLR Main Output confi gured as Line
Level (+4 dB). To change this to Mic Level (-10 dB), carefully remove the lid,
locate the Mic/Line header which is near the Main Output jack. Move the two
jumpers from the Line Level position (shown below on the right), to the Mic Level
position (shown on the left).